Permatex 54540 is a pneumatic and hydraulic thread sealant supplied in a 36 ml tube. It is formulated to lock and seal high-pressure hydraulic and pneumatic systems, including fittings, plugs, and threaded connections. The formula contains no fillers or particles, so it will not contaminate system fluids, foul valves, or clog fine filters and screens. It cures on as-received fasteners without requiring pre-cleaning, and the controlled locking strength allows for disassembly with standard hand tools. Sold by Pro Gear and Transmission. Call us to confirm proper fit for your application.

Permatex 54540 Pneumatic/Hydraulic Sealant is OEM specified for locking and sealing high-pressure hydraulic and pneumatic systems. The particle-free formula contains no fillers that could contaminate system fluids, foul valves, or clog fine filters and screens. The sealant reliably cures on as-received fasteners, and its controlled locking strength allows disassembly without specialty tools.